Home / 27,857.92-38,443.98-15,282.76

Finding the Fourth Proportional to 27,857.92, 38,443.98 and 15,282.76

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Solution

The fourth proportional to 27,857.92, 38,443.98 and 15,282.76 is: 21,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.92 : 38,443.98 = 15,282.76 : x
  2. Step 2: Convert to fraction form
    27,857.92/38,443.98 = 15,282.76/x
  3. Step 3: Cross multiply
    27,857.92x = 38,443.98 × 15,282.76
  4. Step 4: Simplify right side
    27,857.92x = 587,530,119.78
  5. Step 5: Solve for x
    x = 587,530,119.78/27,857.92
  6. Step 6: Final answer
    x = 21,090.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.